Lens-mounting.



L. ARNTZ.

LENS MOUNTING.

APPLICATION min MAR. la. |911.

Patented Oct. 2, 1917.

m2 ness ling to the edge of the orme..

LEW ARNTZ, 0F DES MOINES, IOWA.

LENS-MOUNTING. i

Specification of Letters Patent.

4 Patented Oct. 2, 1917.

Application led March 13, 1917. Serial N o. 154,620.

To all whom it may concern:

Be it known that I, Lnw ARNTZ, a citizen of the United States, and resident of Des Moines, in the county of Polk and State of Iowa, have invented a certain new and useful Lens-Mounting, of which the following is a specification.

My invention relates to lens mountings for eye glasses and the like.

The object of my invention is to provide a lens and mounting therefor, of simple, durable and inexpensive construction, which will remain rigid and Hrm after the parts have once been assembled.

A further object is to provide a lens and mounting therefor, the lens being mounted with an opening through it, and withhcontracted neck extending from said openlens, said mounting having spaced side members for engaging the side surface of the lens, and having a pair of spring members extending inwardly I through said passage to said opening in position parallel with each other, having parts at their free ends curved away from each other for engaging the walls of said opening, the free ends of said spring members being adapted to overlap during the inser-` tion into the lens.

My invention consists in the construction, Iarrangement and combination of the various parts of the device, whereby the objects con* templated are attained, as hereinafter more fully lset forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 shows a side elevation off a mounting, embodying iny invention.

Fig. 2 shows a horizontal, sectional view taken on the line 2 2 of Fig. 3. v

Fig. 3 shows a vertical, sectional View through a portion of the lens, and the mounting, and

Fig. 4 shows `a"vertical, sectional view taken on the line 4-4 of Fig. 3.

In the accompanying drawings I Ahave used the reference numeral 10 to indicate generally the lens of an eye glass, which has a substantially circular opening 11 near one end, and a comparatively contracted neck or passage 12 extending from the opening 11 to the edge of the eye glass, as clearly shown'in Fig. 3.

My iingrved 4mounting comprises va mounting y 13 having spaced opposite receiving ndern ers 14- designed to receive between them the lens 10, as shown in Figs. 1 and 2.

Supported on the mounting body 13 is a pair of spring members 15, extending away from the body 13, parallel with each other between the receiving members 14 and preferably spaced an vequal distance from said receiving members.

The springs 15 are provided at their inner ends with opposite, upwardly curved portions 16, shown in Fig. 3, the free ends of said portions lo being normally slightly spaced from each other, as shown in said figure.

In the assembling and mounting of my mount proper, on the lens, the opening 11 and passage 12, are filled with suitable cement 18, thereupon the mounting is shoved on to the lens from the end thereof having the passage 12, with the lens received between the members 14.

During the inner movement of the spring members, it will be seen that the two mem bers will be pressed toward each other and that the free ends of the portions 16 will overlap each other. When the portions 1G reach the opening 11, their resiliency will force them apart until said members 16 engage the walls of the opening 11, as illustrated in Fig. 3. A pin 19 is inserted through suitable opposite openings in the members 14 and through the lens. The cement is then allowed to set, and the spring members will be in the position shown in Fig. 3, when the device is finally completed.

My improved lens mounting has a number of advantages some of which will be obvious from the foregoing description.

It is my purpose to be able to support all of the parts on the mount prope on the body 13, so that in assembling the mounting on the lens, the device may be simply shoved endwise on to the lens, land when the members 16 reach the inner limit of their movement they will automatically move to proper position. y v

By using the side membe1"s,ithe ends of which may overlap each other, I am enabled to accomplish several desirable ypurposes. In the first place, with such 'a device it is necessary to cut awayk only aminimum amount of the lens, thereby retaining, as fai` as possible, the strength of the lens at the end' thereof where the mounting is secured thereon. f

In the second place, with the lform andl arrangement of the spring members, in connection with the body or clip 13 of the lens, it will be obvious that the glass of the lens is firmly gripped between the portions 16 and the body 18 of the mounting. The spring devices are so arranged that the `portions 16 tend to press against the walls of the opening 11, and it will be seen that there is a tension interposed between the member 13 and the portions 16 for gripping between said body and portions certain parts of the lens.

This I consider important-in that widely separated bearing points are provided, so that the body 13 will alwa s tend to be gripped against the edge of t e lens.

Some changes might be made in the construction and arrangement of the parts of my improved lens mounting without departing from the essential features and purposes of my invention, and it is my lintention to cover by the claims of the patent to be issued upon my applica-tion any such modified forms of structure or use of mechanical equivalents, which may be reafsonably included within the scope of my claims.

I claim as my invention:

l. In a device of the class described, the combination of a lens having near one edge .an opening and\having a comparatively narrow slot extending from said opening to the edge of the lens with a mounting com- Copies of this patent may be obtained forjve cents each, byaddressing the prising a body, having spaced opposite engaging members receiving between them vsaid lens, opposite spaced spring devices extending from said body between said members through said slot and onto said opening, said spring devices having within said opening outwardly curved portions for engaging the lens and yieldingly gripping it between said last named spring portions and said mounting on it.

2. In a device of the class described, the combination of a lens having near one edge an opening, and having a comparatively narrow slot from said opening to the edge of said lens, with a mounting comprising a body, opposite engaging members on said body receiving between them said lens, said engaging members being adapted to cover said opening and slot, and opposite spaced spring devices extending from said body inwardly through said slot, and having outwardly curved inner ends received thereon for gripping the portions of the lens between said last described portions oi' said spring devices and the mounting body, a pin or the like mounted in said engaging members, andextended through said opening, and cement for lling said opening and slot.

Des Moines, Iowa, February 23, 1917.

LEW ARNTZ.

Commissioner of Patents,

Washington, D. C.

within said opening, and engaging the lens 

